Ozone (O₃)in the Atmosphere Can Be Converted to Oxygen Gas $\Delta$

question 50

Multiple Choice

Ozone (O₃) in the atmosphere can be converted to oxygen gas by reaction with nitric oxide (NO) . Nitrogen dioxide is also produced in the reaction. What is the enthalpy change when 8.50L of ozone at a pressure of 1.00 atm and 25°C reacts with 12.00 L of nitric oxide at the same initial pressure and temperature? [ $\Delta$ H°_f(NO) = 90.4 kJ/mol; $\Delta$ H°_f(NO₂) = 33.85 kJ/mol; $\Delta$ H°_f(O₃) = 142.2 kJ/mol]

• A)-69.2 kJ
• B)-19.7 kJ
• C)-1690 kJ
• D)-97.6 kJ
• E)-167 kJ

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Definitions:

Depletion Expense

The process of transferring the cost of natural resources to an expense account.

Accumulated Depletion

The total amount of resource extraction accounted for as an expense over time, reducing the asset's value.

Straight-Line Method

An approach for calculating depreciation of an asset, which spreads the cost evenly over its useful life.

Depreciation

A process for spreading out the expense of a physical asset across its lifespan.